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Women of power Shot during the Fortune Most Powerful Women Summit, these portraits showcase some of the world's most influential leaders. Photographs by Robyn Twomey. More
6 green cooks These culinary powerhouses use sustainable, locally grown produce to bring their dishes to the next level. Meet a half dozen under 40, chosen by the Mother Nature Network. More
Blue-Ribbon Companies Which companies were on the most Fortune lists - including the FORTUNE 500, Fastest-Growing and Best Companies to Work For - this year? Here are the top firms. More

The 35 largest U.S. private companies

Some of the biggest names in business operate outside the public markets. Here's a look at the top players.

Power List: Where the private equity money is Fortune's exclusive look at the country's most powerful buyout firms. (more)
10 private-equity deals gone bustWhen the liquidity is flowing like wine, every deal looks like a perfect ten. But a lot can - and has - gone wrong. (more)
The year of the vultureThe private equity firms that will thrive in the year ahead are those that know how to profit from others' misfortunes. (more)
Koch: From Dixie cups to dieselWith $98 billion in estimated sales, Koch Industries tops Fortune's list of private companies. (more)video
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